@scope (.legacy-room){:scope{--paper:#ece8dc;--ink:#1d2528;--blue:#1746ed;--orange:#ff5c28;--line:#9d9b90;--mono:ui-monospace,Consolas,monospace;--body:Arial,Helvetica,sans-serif;--display:Impact,Haettenschweiler,"Arial Narrow Bold",sans-serif;font:18px/1.5 var(--body)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.5 var(--body)}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit;color:inherit}button,summary{cursor:pointer}a,button,summary,input,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:5px}[hidden]{display:none!important}.room{max-width:1480px;margin:auto;padding:0 5.5%}.top{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:2px solid var(--ink)}.name{font:42px/1 var(--display);letter-spacing:-.06em;text-decoration:none}.name span{color:var(--orange)}nav{display:flex;gap:28px;font:12px var(--mono)}nav a{padding:14px 0;text-decoration:none}nav a:hover{text-decoration:underline}.entrance{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:10px;min-height:620px;padding:24px 0 42px;position:relative}.introduction{position:relative;z-index:1}.pencil-note{font:italic 23px Georgia,serif;color:var(--blue);transform:rotate(-4deg);margin:0 0 28px 5px;display:inline-block}h1{font:clamp(54px,6.8vw,102px)/.98 var(--display);letter-spacing:-.025em;margin:0 0 26px;max-width:700px;font-weight:400}h1 em{font-style:normal;position:relative;white-space:nowrap}h1 em:after{content:"";position:absolute;bottom:-4px;left:-2px;right:-14px;height:6px;background:var(--blue);clip-path:polygon(0 28%,100% 0,97% 75%,2% 100%);transform:rotate(-3deg)}.hello-copy{font-size:21px;line-height:1.4;max-width:420px;margin:0 0 24px}.ordinary{font:14px var(--mono);margin:0 0 12px}.work-links{display:flex;align-items:stretch;gap:13px;flex-wrap:wrap}.work-links a{font:13px/1.4 var(--mono);padding:15px 18px;text-decoration:none;border:2px solid var(--ink);transition:transform .15s,box-shadow .15s;min-height:50px}.work-links a:hover{transform:translate(-2px,-2px);box-shadow:3px 3px 0 var(--blue)}.primary{background:var(--ink);color:var(--paper)}.work-links span{margin-left:12px}.tool-note{font:10px/1.8 var(--mono);color:#575e5d;margin-top:17px}.tool-note a{display:inline-block;padding:4px 0}.annotator{margin:0 -5% 0 -3%;position:relative;align-self:end}.annotator img{width:100%;height:auto;display:block;max-height:610px;object-fit:contain}.annotator figcaption{font:italic 16px Georgia,serif;color:var(--blue);text-align:right;padding-right:15px;margin-top:-7px;transform:rotate(-3deg)}.workbench{padding:30px 0 0}.bench-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:2px solid var(--ink);margin-bottom:25px}.bench-heading h2{font:42px/1.1 var(--display);font-weight:400;margin:0 0 15px}.bench-heading p{color:var(--blue);font:italic 18px Georgia,serif;transform:rotate(-5deg);margin:0}.bench-heading p span{font:30px var(--mono);padding-left:20px}.bench-body{display:grid;grid-template-columns:.9fr 1.1fr;gap:35px;align-items:start}.apparatus{position:relative;background:#d6d4c9;border:2px solid var(--ink);border-radius:3px 3px 20px 6px;padding:33px 32px 18px;margin-top:26px;box-shadow:7px 8px 0 #bbbdb0;transform:rotate(-.7deg)}.engraved{font:10px var(--mono);letter-spacing:.12em;margin:0 0 26px;text-align:center}.top-clamp{position:absolute;top:-19px;left:25%;width:50%;height:32px;border:2px solid var(--ink);background:#b8bbb5;border-radius:6px 6px 0 0;box-shadow:inset 0 -8px 0 #a0a59e}.bolt{position:absolute;width:10px;height:10px;border:1px solid var(--ink);border-radius:50%;background:linear-gradient(125deg,transparent 42%,var(--ink) 43%,var(--ink) 51%,transparent 52%)}.b1{top:12px;left:12px}.b2{top:12px;right:12px}.b3{bottom:12px;left:12px}.b4{bottom:12px;right:12px}fieldset{border:0;padding:0;margin:0;min-width:0}fieldset:disabled{opacity:.65}.control-label{font:14px var(--mono);display:block;margin-bottom:9px}select{width:100%;padding:13px 38px 13px 13px;background:var(--paper);border:2px solid var(--ink);border-radius:0;font:18px var(--mono);min-height:52px}.source-pin{font:9px/1.5 var(--mono);display:inline-block;padding:8px 0;overflow-wrap:anywhere}.return-slip{border-left:4px solid var(--blue);padding:10px 13px;margin:18px 0 22px;background:#e9e6dc;transform:rotate(1deg)}.return-slip span,.return-slip small{display:block;font:10px var(--mono);line-height:1.7}.return-slip strong{font:15px var(--mono);font-weight:400}.return-slip small{color:#5a625f}.lever{display:flex;align-items:center;gap:15px;cursor:pointer;min-height:56px;position:relative;font-size:17px}.lever input{width:21px;height:21px;accent-color:var(--blue);flex-shrink:0}.lever small{display:block;font:8px/1.6 var(--mono);overflow-wrap:anywhere}.lever-drawing{height:37px;width:26px;position:relative;display:block;flex-shrink:0}.lever-drawing:before{content:"";position:absolute;width:9px;height:32px;background:var(--ink);bottom:0;left:7px;transform-origin:bottom;transform:rotate(-23deg);transition:transform .22s}.lever-drawing:after{content:"";position:absolute;top:0;left:-1px;width:21px;height:21px;background:var(--blue);border:2px solid var(--ink);border-radius:50%;transition:transform .22s}.lever input:not(:checked)+.lever-drawing:before{transform:rotate(27deg)}.lever input:not(:checked)+.lever-drawing:after{transform:translate(18px,4px)}.mechanism{width:100%;height:auto;margin-top:7px;overflow:visible}.mechanism .pipe,.mechanism .wheel{stroke:var(--ink);stroke-width:3;fill:none}.mechanism .live-pipe{stroke:var(--blue);stroke-width:7;fill:none;stroke-linecap:round;transition:opacity .2s}.mechanism circle{fill:var(--ink)}.mechanism rect{fill:var(--paper);stroke:var(--ink);stroke-width:2}.mechanism text{font:17px var(--mono);fill:var(--ink)}.mechanism text.diagram-small{font-size:9px}.apparatus.disconnected .live-pipe{opacity:.12}.model-limit{font:10px/1.6 var(--mono);margin:9px 0 0;color:#4a5350}.paper-assembly{position:relative;padding-top:13px;min-width:0}.roller{height:33px;border:2px solid var(--ink);background:#a1a6a0;display:flex;align-items:center;justify-content:space-around;border-radius:6px;transform:rotate(.7deg);box-shadow:0 7px 0 #1d25283d}.roller i{height:27px;width:13px;border-left:3px solid var(--ink);border-right:2px solid var(--ink);border-radius:4px;background:#b9beb2}.paper-feed{position:relative;margin:-4px 17px 0 15px;padding:37px 35px 30px;background:#f8f3e6;border:1px solid #797e70;border-top:0;box-shadow:3px 6px 0 #1d25281a;transform:rotate(.6deg);min-height:430px;transition:padding .25s}.paper-feed:after{content:"";position:absolute;height:12px;bottom:-10px;left:-1px;right:-1px;background:linear-gradient(135deg,#f8f3e6 45%,transparent 46%) 0 0/18px 18px,linear-gradient(225deg,#f8f3e6 45%,transparent 46%) 0 0/18px 18px}.file-line{font:9px/1.5 var(--mono);color:#57615c;margin:0 0 23px;letter-spacing:.05em}.paper-feed h3{font:36px/1.1 var(--display);font-weight:400;margin:0 0 20px;max-width:450px}.answer{font-size:21px;line-height:1.4;margin:0 0 20px}.paper-feed #working-notes p{font-size:16px;line-height:1.5;margin:0 0 16px}.pencil-verdict{font:italic 21px/1.3 Georgia,serif;color:var(--blue);transform:rotate(-2deg);margin:24px 0 20px}.result-sources{display:flex;gap:20px;flex-wrap:wrap;font:11px var(--mono);margin-top:25px}.result-sources a{padding:7px 0}.scope{font:9px/1.7 var(--mono);color:#59615c;margin:18px 0 0}.cutter{position:relative;min-height:64px;border:2px solid var(--ink);background:var(--orange);padding:16px 25px;text-align:left;font:15px/1.4 var(--mono);width:calc(100% - 2px);display:flex;justify-content:space-between;gap:12px;align-items:center;margin:18px 0 0 1px;box-shadow:3px 4px 0 var(--ink);transition:transform .15s;isolation:isolate}.cutter:hover{transform:translateY(-2px)}.blade{position:absolute;left:-5px;right:-5px;top:-9px;height:12px;border:2px solid var(--ink);background:#b7bdb4;clip-path:polygon(0 0,100% 0,100% 70%,1% 100%);transition:transform .22s}.cutter[aria-expanded=false] .blade{transform:translateY(10px) rotate(-1deg)}.cut-symbol{font-size:29px;line-height:1}.paper-assembly.short .paper-feed{min-height:0;padding-bottom:20px}.machine-status{font:10px/1.6 var(--mono);color:#48524e;min-height:28px;margin:15px 2px 0}.manual{padding:75px 0 55px}.manual details{border-top:2px solid var(--ink);border-bottom:1px solid var(--ink)}.manual summary{display:flex;align-items:center;gap:25px;list-style:none;min-height:100px;padding:20px 0;font-size:26px}.manual summary::-webkit-details-marker{display:none}.manual summary small{display:block;font:12px/1.7 var(--mono);margin-top:5px;color:#4f5953}.book-spine{font:9px var(--mono);min-width:55px;height:73px;border:2px solid var(--ink);padding:9px 4px;background:#c9d0be;transform:rotate(-7deg);display:flex;align-items:center;flex-direction:column;justify-content:space-between}.book-spine s{text-decoration-color:var(--blue);text-decoration-thickness:2px}.book-spine b{font-size:8px}.plus{margin-left:auto;font:34px var(--mono);color:var(--blue)}details[open] .plus{transform:rotate(45deg)}.manual-pages{display:grid;grid-template-columns:1.15fr 1fr;gap:65px;padding:25px 15px 35px 80px}.manual-pages h2{font:italic 27px/1.25 Georgia,serif;margin:0 0 20px}.manual-pages p{font-size:17px;max-width:650px}.small-print{padding:20px 0 0 30px;border-left:1px solid var(--line)}.small-print p{font:12px/1.8 var(--mono)}footer{padding:7px 0 45px;display:flex;align-items:baseline;gap:25px;flex-wrap:wrap}footer p{font:22px/1.4 Georgia,serif;font-style:italic;margin:0}footer>a{font:14px var(--mono);color:var(--blue);padding:8px 0}footer small{flex-basis:100%;font:10px var(--mono);color:#56605b}.skip{position:fixed;top:-100px;left:10px;background:var(--ink);color:var(--paper);padding:14px;z-index:100}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1600px){h1{font-size:104px}}@media(max-width:1050px){.room{padding:0 5%}.entrance{min-height:550px;gap:0}.annotator{margin-right:-4%;margin-left:-9%}.hello-copy{font-size:19px}.work-links a{font-size:11px;padding:14px 12px}.bench-body{gap:20px}.apparatus{padding:32px 23px 19px}.paper-feed{padding:32px 24px 25px;margin-left:8px;margin-right:8px}.paper-feed h3{font-size:31px}.answer{font-size:18px}.manual-pages{gap:30px;padding-left:30px}}
@media(max-width:680px){body{font-size:17px}.room{padding:0 6%}.top{min-height:75px;gap:14px}.name{font-size:35px}nav{gap:16px;font-size:10px}nav a:first-child{display:none}.entrance{display:flex;flex-direction:column;align-items:stretch;padding:27px 0 24px;min-height:0}.pencil-note{font-size:20px;margin:0 0 22px}h1{font-size:clamp(54px,12.2vw,82px);line-height:1;margin:0 0 22px}.hello-copy{font-size:19px;max-width:420px}.work-links{gap:9px}.work-links a{font-size:11px;padding:14px 12px;flex:1;white-space:nowrap}.work-links span{margin-left:6px}.tool-note{font-size:9px}.annotator{max-width:360px;width:86%;margin:10px auto 0}.annotator img{max-height:340px}.annotator figcaption{font-size:14px}.workbench{padding-top:18px}.bench-heading h2{font-size:31px}.bench-heading p{font-size:13px}.bench-heading p span{font-size:21px;padding-left:3px}.bench-body{grid-template-columns:1fr;gap:17px}.apparatus{margin-top:15px;padding:30px 22px 18px}.engraved{font-size:9px;margin-bottom:20px}.return-slip{margin:13px 0 16px}.mechanism{max-height:112px}.paper-assembly{padding-top:13px}.paper-feed{margin:0 8px;padding:28px 25px 25px;min-height:0}.paper-feed h3{font-size:33px}.answer{font-size:20px}.file-line{font-size:8px;margin-bottom:19px}.paper-feed #working-notes p{font-size:16px}.pencil-verdict{font-size:20px}.result-sources{font-size:10px}.scope{font-size:9px}.cutter{font-size:13px;padding:14px 20px;min-height:60px}.model-limit{font-size:10px}.manual{padding:45px 0 35px}.manual summary{gap:16px;font-size:21px}.manual summary small{font-size:10px;max-width:230px}.book-spine{min-width:46px;height:66px}.manual-pages{grid-template-columns:1fr;padding:15px 3px 25px;gap:10px}.manual-pages h2{font-size:24px}.manual-pages p{font-size:17px}.small-print{padding:10px 0 0 0;border-left:0;border-top:1px solid var(--line)}.small-print p{font-size:11px}footer{gap:12px;padding-bottom:30px}footer p{font-size:19px}footer>a{font-size:12px}footer small{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}.apparatus.unassessed .live-pipe{opacity:0}.apparatus .machine-status{border-top:1px solid #8f978c;padding-top:13px;font-size:12px;font-weight:600;line-height:1.6;min-height:0;color:var(--ink)}

.version-reader{margin-top:38px;padding:30px;border:2px solid var(--ink);background:#f7f3e8;max-width:900px}
.version-reader h2{font:clamp(29px,4vw,43px)/1.1 var(--display);font-weight:400;margin:12px 0}
.version-reader>p{max-width:720px;font-size:16px}.version-reader .file-line{font:11px var(--mono);color:var(--blue)}
.version-reader label{display:block;font:13px var(--mono);margin:22px 0 9px}
.version-reader textarea{display:block;width:100%;max-width:100%;min-height:130px;resize:vertical;background:var(--paper);border:1px solid var(--line);padding:14px;color:var(--ink);font:13px/1.6 var(--mono)}
.version-reader textarea:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
.reader-actions{display:flex;gap:12px;flex-wrap:wrap;margin:15px 0}.reader-actions button{min-height:46px;padding:10px 17px;background:var(--blue);color:white;border:2px solid var(--blue);font:13px var(--mono)}
.reader-actions button:last-child{background:transparent;color:var(--ink);border-color:var(--ink)}.reader-actions button:disabled{opacity:.55;cursor:default}
.version-reader .reader-note{font:12px/1.6 var(--mono);color:#48514d}.reader-result{border-top:1px solid var(--line);padding-top:12px;margin-top:20px;overflow-wrap:anywhere}.reader-result p:empty{display:none}
#reader-status{font-weight:bold;font-size:19px}#reader-versions{font:13px/1.6 var(--mono)}#reader-next{font-size:16px}
@media(max-width:680px){.version-reader{padding:22px 18px;margin-top:28px}.version-reader>p{font-size:15px}.version-reader textarea{font-size:12px}}

}
:root{--paper:#f3efe4;--ink:#20201e;--blue:#173fc3;--muted:#59594f;--line:#c4bfaf;--reading:Cambria,'Iowan Old Style','Palatino Linotype',Georgia,serif;--plain:Arial,Helvetica,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:20px/1.6 var(--reading)}a{color:inherit;text-underline-offset:.2em;text-decoration-thickness:1px}a:hover{color:var(--blue)}button,select,input{font:inherit}button,a,summary,input,select{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.page{max-width:1400px;margin:auto;padding:0 64px}.skip{position:fixed;z-index:20;left:12px;top:-100px;background:var(--ink);color:var(--paper);padding:12px}.skip:focus{top:12px}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden;white-space:nowrap}.masthead{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}.wordmark{font:900 36px/1 var(--plain);letter-spacing:-.075em;text-decoration:none}.masthead nav{display:flex;gap:30px;font:16px/1.4 var(--plain)}.masthead nav a{text-decoration:none;padding:8px 0}.masthead nav a:hover{text-decoration:underline}.opening{display:grid;grid-template-columns:.95fr 1.05fr;align-items:center;gap:10px;min-height:540px;padding:24px 0 36px}.opening-copy{z-index:1}.opening h1{font:900 clamp(56px,6.3vw,88px)/1.04 var(--plain);letter-spacing:-.065em;margin:0 0 27px}.opening h1 em{font-style:normal;color:var(--blue);text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:8px}.opening-copy>p{font-size:23px;line-height:1.4;margin:0 0 28px}.pencil-link{font:700 16px/1.5 var(--plain);color:var(--blue);text-decoration:none;border-bottom:1px solid var(--blue);padding-bottom:5px}.pencil-link span{margin-left:12px}.portrait{margin:0 -36px 0 0;align-self:end}.portrait img{display:block;width:100%;height:auto;max-height:500px;object-fit:contain;object-position:center bottom}.work{border-top:3px solid var(--blue);padding:28px 0 55px}.section-note{display:flex;justify-content:space-between;gap:18px;font:14px/1.5 var(--plain);margin-bottom:42px}.section-note>a{color:var(--blue)}h2{font:500 clamp(34px,4vw,55px)/1.12 var(--reading);letter-spacing:-.025em;margin:0 0 30px}.case-columns{display:grid;grid-template-columns:1.05fr .95fr;gap:74px;align-items:start}.argument p{margin:0 0 22px}.argument .lead{font-size:25px;line-height:1.4}.argument code,article code{font-size:.82em;overflow-wrap:anywhere}.case-point{color:var(--blue);font-size:26px;font-style:italic}.edition-note{font:14px/1.7 var(--plain);color:var(--muted);max-width:400px;padding-top:10px}.experiment{padding:5px 0 0 28px;border-left:1px solid var(--line)}.experiment h3{font:700 18px/1.4 var(--plain);margin:0 0 22px}.experiment fieldset{border:0;padding:0;margin:0}.experiment label{font:15px/1.5 var(--plain)}.experiment select{display:block;width:100%;margin:8px 0 22px;border:0;border-bottom:2px solid var(--blue);padding:10px 2px;background:transparent;color:var(--blue);border-radius:0;font:20px/1.4 var(--reading)}.decoder-switch{display:flex;align-items:center;gap:10px}.decoder-switch input{accent-color:var(--blue);width:19px;height:19px;flex:none}.trace{display:flex;align-items:center;gap:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;margin:28px 0 20px;font-size:17px}.trace strong{font:700 24px/1.2 var(--reading)}.trace code{white-space:nowrap}.trace #question-arrow{font-size:30px;color:var(--blue)}.trace[data-reachable=false] #question-arrow{color:var(--muted)}.experiment-answer{font-size:22px;line-height:1.4;margin:0 0 12px}.aside{color:var(--blue);font-style:italic;font-size:19px;min-height:28px;margin:10px 0 20px}.experiment-scope{font:13px/1.65 var(--plain);color:var(--muted);margin:0}.experiment-scope a{white-space:nowrap}.tools{margin-top:52px}.archive-drawer{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.archive-drawer>summary{font:700 17px/1.4 var(--plain);padding:22px 0;display:flex;justify-content:space-between;gap:12px;list-style:none}.archive-drawer>summary::-webkit-details-marker{display:none}.archive-drawer>summary:after{content:'+';font-size:24px;color:var(--blue)}.archive-drawer[open]>summary:after{content:'−'}.legacy-room{padding:15px 0 35px}.legacy-room .reader-note,.legacy-room .model-limit,.legacy-room .scope,.legacy-room 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